W.H.A.T. T.O. W.E.A.R ??? roll wiv us or get rolled ova!?

am fourteen and I'm going to my friends party on saturday; it starts 6:30pm-10:00pm. What should I wear, do my make up like and do my hair. My hair is cornrowed at the front and left out at the back, I am black (like kelly rowlands color) and I am slim so advice please x